Enable all checks during integration test
Enable all checks during integration test

When testing trunk hacking against projects we want to see the results
for all checks. To make the output easier to understand, also enable
statistics output at the end, so one can quickly see if there is any
change in the numbers

Change-Id: Ic80083a5605a988aae75c20df924eced8674ef1f

zancas/hacking,zancas/hacking,hyakuhei/cleantox,hyakuhei/cleantox,openstack-dev/hacking,openstack-dev/hacking